It seems to be fixed in 27. Any idea how I can avoid the problem in a stable
release, such as 26 or 25?

On 1/1/20 3:39 AM, Eli Zaretskii wrote:

>> From: ricercar@lycos.com
>> Date: Tue, 31 Dec 2019 20:03:24 +0000
>>
>> When I try to run emacs 26.3.50 (built from source), it gives me the following warning: "Warning: desktop file appears to be in use by PID .... Using it may cause conflicts. Use it anyway? (y or n)". If I select "y", it eventually quits and the following error is produced:
>>
>> Fatal error 11: Segmentation fault
>> Backtrace:
>> ./src/emacs-26.3.50.1[0x5072fe]
>> ./src/emacs-26.3.50.1[0x4ece6a]
>> ./src/emacs-26.3.50.1[0x50581e]
>> ./src/emacs-26.3.50.1[0x505a38]
>> ./src/emacs-26.3.50.1[0x505abc]
>> /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f0e498eb890]
>> /usr/lib/x86_64-linux-gnu/libXft.so.2(XftCharIndex+0xd)[0x7f0e4a9bb68d]
> Crystal ball says this is bug#38442.  If so, it is already fixed, and
> the problem is that you have a non-XFT font backend specified by the
> desktop file for one of your frames.
>